Pourable water and oil containing emulsions comprising gas bubbles

Abstract

The invention relates to pourable water and oil containing emulsions comprising an aqueous phase and gas bubbles, whereby said gas bubbles are substantially dispersed in the aqueous phase. Emulsions according to the invention show increased stability.

What is claimed is:  
     
       1. Pourable water and oil containing emulsion comprising a continuous fatty phase and a dispersed aqueous phase, and gas bubbles, characterised in that said gas bubbles are substantially dispersed in the aqueous phase. 
     
     
       2. Pourable water and oil containing emulsion according to  claim 1 , comprising 20 to 98 wt % of a fatty phase, and 80 to 2 wt % of an aqueous phase comprising 5 to 20 vol % gas such that the average density of the aqueous phase differs at most 5% from the density of the oil phase. 
     
     
       3. Pourable water and oil containing emulsion according to  claim 1 , wherein the gas is nitrogen or air or a combination thereof. 
     
     
       4. Pourable water and oil containing emulsion according to  claim 1  characterized in that said product has a stability against sedimentation such that after one month storage of the emulsion at 5 degrees C. shows an oil layer of less than 20%. 
     
     
       5. Method for the preparation of a pourable water and oil containing emulsion according to  claim 1 , characterized in that the method includes a step wherein the water droplets with adequate, approximately oil matching density, are separated form other water droplets. 
     
     
       6. Method according to  claim 5 , wherein the separation includes a centrifugation step. 
     
     
       7. Method to enhance the stability of a pourable water in oil emulsion whereby gas bubbles are incorporated in the aqueous phase of said pourable water in oil emulsion.